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Finding the Fourth Proportional to 58,322.09, 87,497.02 and 18,879.20

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Solution

The fourth proportional to 58,322.09, 87,497.02 and 18,879.20 is: 28,323.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,322.09 : 87,497.02 = 18,879.20 : x
  2. Step 2: Convert to fraction form
    58,322.09/87,497.02 = 18,879.20/x
  3. Step 3: Cross multiply
    58,322.09x = 87,497.02 × 18,879.20
  4. Step 4: Simplify right side
    58,322.09x = 1,651,873,739.98
  5. Step 5: Solve for x
    x = 1,651,873,739.98/58,322.09
  6. Step 6: Final answer
    x = 28,323.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.